if a=1+2½+3½ & b=1+2½-3½ then find a²+b²-2a-2b
mayurpatil1:
35
Answers
Answered by
1
***
a = 1 + 21/2 + 3 1/2
a = 1 + 2.5 + 3.5
a = 7
b = 1 + 2 1/2 - 3 1/2
b = 1 + 2.5 - 3.5
b = 3.5 - 3.5
b = 0
Now ,
a² + b² - 2a - 2b
= 7² + 0 - ( 2 × 7 ) - ( 2 × 0 )
= 49 - 14
= 35
I hope this helps you .
:)
a = 1 + 21/2 + 3 1/2
a = 1 + 2.5 + 3.5
a = 7
b = 1 + 2 1/2 - 3 1/2
b = 1 + 2.5 - 3.5
b = 3.5 - 3.5
b = 0
Now ,
a² + b² - 2a - 2b
= 7² + 0 - ( 2 × 7 ) - ( 2 × 0 )
= 49 - 14
= 35
I hope this helps you .
:)
Similar questions